2000 Z28 coup bone stock on the OEM BF Goodrich tires it came with when bought new ...12.96 @109 ... 6 speed manual ... and there are some that have gone quicker than that ... there have been magazines articles testing cars that went that turned ETs in the high 12s...but for the most part you are going to see 13.00 + ETs with a stock 4th gen Camaro ... the trick is having a sub 2.0 60 foot time.

You can remove any doubt. My car back in the day with a lid and a loudmouth ran a best of 12.98 @ 108. Added a Yank ST3800 and tuned the shift points with a Hyperjunk and went 12.15 @ 110. 00 Formula auto trans.

How in the hell did you pick up 2 full MPH going to that kind of a converter? I've never heard of a switch to a big converter like that gaining someone that much speed up top, usually it stays the same or goes down.

How in the hell did you pick up 2 full MPH going to that kind of a converter? I've never heard of a switch to a big converter like that gaining someone that much speed up top, usually it stays the same or goes down.

Because Yank converters are very efficient up top. Also went from 1.9x 60' to low 1.6x 60s with the motor being in the powerband the whole trip.

My 98 SS A4 Vert ran 13.4 @ 105 (2.07 60') with lid and flowmaster catback at sea level. I switched to a loudmouts and it dropped to 13.2 again at sea level (2.04 60'). With a -1500 DA day I ran a best of 13.003 at 108 on a 2.004 60' with same mods. I would imagine with the stock ls6 intake and good DA you should be able to run a 13.2-13.4 on stock tires.

Just took my 95 z28 to the track. Hit a 13.92 and 13.892 top speed was 103.3-103.5. I keep hearing about z28's hitting 13.3's-13.5's, just curious what I'm missing. It has AT with shift kit, CAI, throttle body, Flowmaster 3 inch exhaust w/ no cat.

Just took my 95 z28 to the track. Hit a 13.92 and 13.892 top speed was 103.3-103.5. I keep hearing about z28's hitting 13.3's-13.5's, just curious what I'm missing. It has AT with shift kit, CAI, throttle body, Flowmaster 3 inch exhaust w/ no cat.